Running Sooooooo Rich! Help!

godgaveussid · 08-28-2007, 08:23 PM

Okay so after yeanking off the valve covers and doing the gaskets plus drain plug 3, I went to start up the Supra and shes running REALLY rich. Like, stalls out in neutral, bogs from stoplights, kicks flames at stock boost between shifts RICH. Im trying to figure out what it is. Only mods are turboback and intake so i dk what to do. I think there may be a vaccum leak but I just dont know. Anyone????

redmaro · 08-28-2007, 08:51 PM

Check your codes and your timing.

godgaveussid · 08-29-2007, 06:30 PM

could a vaccum leak cause me to run this rich?

oowee623 · 08-29-2007, 08:40 PM

Quote:

Originally Posted by godgaveussid

could a vaccum leak cause me to run this rich?

there was a diesel mercedes at city college here that ran rich from a vacuum leak, so its possible but i dont know about supras running rich from a vacuum leak

Syris · 08-29-2007, 08:46 PM

You need to pull codes.

I wouldnt be looking for vacuum leaks, only reason I would look for this though would be for the rough idle but in your case it is something else.

The computer is recognizing a problem and is having the engine put in more fuel to take care of the chance of blowing the engine.

Pull some codes and post them up here and then we can further diagnose it.

08-28-2007, 08:23 PM	#1
godgaveussid Stock Join Date: Aug 2007 Location: st. louis Posts: 22	Running Sooooooo Rich! Help! Okay so after yeanking off the valve covers and doing the gaskets plus drain plug 3, I went to start up the Supra and shes running REALLY rich. Like, stalls out in neutral, bogs from stoplights, kicks flames at stock boost between shifts RICH. Im trying to figure out what it is. Only mods are turboback and intake so i dk what to do. I think there may be a vaccum leak but I just dont know. Anyone???? __________________ 1992 BMW 325is - custom turbo kit, tial 38mm, 1g dsm bov, t3/t4, 18's and new paint...dead. 1981 Datsun 280zxt - bought, broke, sold for profit. 1993 Camaro Z28 - lt4 heads, hotcam, full bolt-ons , 430rwhp 450 rwtq, traded for... 1991 Supra - 30k on new jdm 7mgte; 60k on n/a chasis. intake, hks mhg, mbc, 3" custom turboback, crossdrilled rotors, sunroof. COMING SOON: hard pipes, greddy profec b, hks turbo timer, lexus afm, 550's, mkiv fuel pump, blitz bov.

08-28-2007, 08:51 PM	#2
redmaro walbro fp Join Date: Mar 2006 Location: arizona Posts: 432	Check your codes and your timing. __________________ MK3, Auto, Turbo.

08-29-2007, 06:30 PM	#3
godgaveussid Stock Join Date: Aug 2007 Location: st. louis Posts: 22	could a vaccum leak cause me to run this rich? __________________ 1992 BMW 325is - custom turbo kit, tial 38mm, 1g dsm bov, t3/t4, 18's and new paint...dead. 1981 Datsun 280zxt - bought, broke, sold for profit. 1993 Camaro Z28 - lt4 heads, hotcam, full bolt-ons , 430rwhp 450 rwtq, traded for... 1991 Supra - 30k on new jdm 7mgte; 60k on n/a chasis. intake, hks mhg, mbc, 3" custom turboback, crossdrilled rotors, sunroof. COMING SOON: hard pipes, greddy profec b, hks turbo timer, lexus afm, 550's, mkiv fuel pump, blitz bov.

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08-29-2007, 08:46 PM	#5
Syris 3" Exhaust Join Date: Jun 2007 Location: OH Posts: 67	You need to pull codes. I wouldnt be looking for vacuum leaks, only reason I would look for this though would be for the rough idle but in your case it is something else. The computer is recognizing a problem and is having the engine put in more fuel to take care of the chance of blowing the engine. Pull some codes and post them up here and then we can further diagnose it.